Shear a sheep for wool, then to spin it locate a spinning wheel and use one piece on it, right-click the ball of wool icon, then click X, then type 28 and press enter to spin a full inventory.
You go to a spinning wheel in many locations and spin it into a ball of wool.
spin it into a ball of wool and either sell it or craft it to make items.
you can make string with it to put on your unstrung symbols or your amulets.
No, sorry :(
you can buy one on g.e, or u can use a shear on a sheep in lumbridge to get wool, then craft it on a crafting wheel to make ball of wool.